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Carbonic anhydrases in plants and algae
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0003-2133-6526
2001 (English)In: Plant, Cell and Environment, ISSN 0140-7791, E-ISSN 1365-3040, Vol. 24, no 2, 141-153 p.Article, review/survey (Refereed) Published
Abstract [en]

Carbonic anhydrases catalyse the reversible hydration of CO2, increasing the interconversion between CO2 and HCO3- + H+ in living organisms. The three evolutionarily unrelated families of carbonic anhydrases are designated alpha-, beta -and gamma -CA. Animals have only the alpha -carbonic anhydrase type of carbonic anhydrase, but they contain multiple isoforms of this carbonic anhydrase. In contrast, higher plants, algae and cyanobacteria may contain members of all three CA families. Analysis of the Arabidopsis database reveals at least 14 genes potentially encoding carbonic anhydrases. The database also contains expressed sequence tags (ESTs) with homology to most of these genes. Clearly the number of carbonic anhydrases in plants is much greater than previously thought. Chlamydomonas, a unicellular green alga, is not far behind with five carbonic anhydrases already identified and another in the EST database. In algae, carbonic anhydrases have been found in the mitochondria, the chloroplast thylakoid, the cytoplasm and the periplasmic space. In C-3 dicots, only two carbonic anhydrases have been localized, one to the chloroplast stroma and one to the cytoplasm. A challenge for plant scientists is to identify the number, location and physiological roles of the carbonic anhydrases.

Place, publisher, year, edition, pages
2001. Vol. 24, no 2, 141-153 p.
Keyword [en]
Arabidopsis, Chlamydomonas, cyanobacteria, macro-algae, photosynthesis
Identifiers
URN: urn:nbn:se:umu:diva-44623ISI: 000167155900001OAI: oai:DiVA.org:umu-44623DiVA: diva2:434819
Available from: 2011-08-16 Created: 2011-06-09 Last updated: 2017-12-08

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Samuelsson, Göran

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